STENUS. 653 
much narrowed behind, indistinctly punctate, but with the depressed pubescence very 
evident. Male with a small excision on the last ventral segment. 
This insect also is closely allied to S. consimilis, though readily distinguished by the 
colour of the femora; it much resembles the European 8. nitidiusculus, which 
belongs, however, to another section of the genus; a fair series was obtained at 
Duefas. 
30. Stenus vestigialis. 
Stenus vestigialis, Erichs. Gen. et Spec. Staph. p. 7327. 
Hab. Mexico 1, 
Apparently allied to S. leucopus, but, as it is stated to have a very elongate thorax, 
perhaps not really pertaining to this group. 
§ 2. Thorax short or not very long ; head without polished elevation ; tarsi 
slender ; size small. 
These insects are allies of the North-American S. punctatus, Ey.; the group will 
probably not prove capable of sharp definition from the next. 
31. Stenus docilis. (Tab. XVII. fig. 10.) 
Nigro-zeneus, nitidus, fere absque pubescentia, dense fortiterque punctatus, parum elongatus, abdomine 
subconico; antennis, palpis pedibusque testaceis, illarum clava fusca; capite haud excavato, fere sequali. 
Long. 4 millim. 
Hab. GuaTeMAta, near the city, Duefias, San Gerdnimo, El Tumbador, San Joaquin 
(Champion). 
Antenne rather long. Head nearly as broad as the elytra, extremely densely 
punctured, not excavate and very indistinctly sulcate on each side. Thorax rather 
longer than broad, much rounded at the sides, coarsely and very closely punctured. 
Elytra along the suture about as long as the thorax, shining; remarkably coarsely and 
definitely punctured, the punctuation very dense but not rugose. Hind body coarsely 
punctured on the basal segment, the punctuation becoming finer on each succeeding 
segment, so that the apical one is very finely punctured. Legs moderately long ; 
femora scarcely at all darker externally. The male has a short, broad, angular excision 
of the last ventral segment; the preceding segment is nearly simple but is more 
pubescent behind, and at the hind margin in the middle is just perceptibly shorter. 
32. Stenus bajulus. 
Nigro-subseneus, nitidus, fere absque pubescentia, dense fortiterque punctatus, subrugosus ; antennis, palpis 
pedibusque testaceis ; capite late obsoleteque bisulcato. 
Long. 4 millim. 
Hab. GuateMALa, near the city, Zapote (Champion). 
